Debate is raging in Washington over the origins of the “sequester” – the deep, almost-across-the-board federal spending cuts that go into effect March 1 if Congress doesn’t act.

Exhibit A is Bob Woodward’s book, “The Price of Politics,” which describes how top aides to President Obama brought the idea to Senate majority leader Harry Reid (D) of Nevada in the summer of 2011, when Congress was grappling with the debt ceiling.

The sequester proposal became part of the agreement that allowed the government to keep borrowing to pay its bills – and, as has been repeated ad infinitum, it was never meant to go into effect. It was supposed to be so beyond the pale that it would force the White House and Congress to come up with a deficit-reduction deal that was more finely honed.

But Republicans have latched onto Mr. Woodward’s book as the smoking gun.

Aha, they say, the sequester is Mr. Obama’s baby. They’ve tried to get people to call it the “Obama sequester” or even the “Obamaquester.” It doesn’t exactly trip off the tongue, but it’s more than the Democrats have devised.

Exhibit B is a July 31, 2011, PowerPoint presentation found by John Avlon of The Daily Beast in an old e-mail, reported on Wednesday. The slideshow was put together by House Speaker John Boehner’s office and the GOP’s House-based think tank, the Republican Policy Committee, and describes a “new sequestration process” that would cut spending across the board if the cuts weren’t made by other means.